Car roof



June 19, 1928. 1,674,091

C. D. BONSALL v 7 CAR ROOF Filed June 23, 1927 Patented June 19, 1928.

UNITED STATES PATENT OFFICE.

CHARLES DAVID BONSALL, OF PITTSIlURGI-I, PENNSYLVANIA, ASSIGNOR TO P. H.MURPHY COMPANY, OF NEW KENSINGTON, PENNSYLVANIA, A CORPORATIONOIPENNSYLVANIA.

Application filed June 23,

This invention relates to car roofs and more particularly tosingle-course roofs of the all-steel riveted-up type whereinselfsupporting sheets extend from sideplate to side plate of the car andare rigidly secured thereto and to each other to form a rigid loadsustaining structure. y

The principal object of the present invention is to provide an improvedeaves con struct-ion for the above type of root that will secureeffective ventilationof the car without afl'ectingthe weatherproolingqualities thereof. Other objects are cheapness and simplicity ofconstruction, and ease of assembly. The invention consists principallyin the improved eaves construction hereinafter shown and described; andit also consists in the parts andin the combinations and arrangen'ientsof parts hereinafter described and claimed. 7

In the accompanying drawing, which forms nart of this specification, andwherein like symbols refer to like parts wherever they occur:

Fig. 1 is a plan view of the eavesportions of a car root embodying myinvention;

Fig. 2 is an enlarged side elevation of the eaves portion of the car,showing one of the ventilating openings and the guard plate therefor;

Fig. 3 is a vertical section on the line 3-3 in Fig. 2; and

Fig. 4: is a perspective view of one of the guard plates.

Referring to the accompanying drawing, my invention is shown inconnection with an all-steel, riveted-up, single-course car roofcomprising self-supporting roof sheets 5, which extend from caves tocaves of the car and slope downwardly on opposite sides of the ridge toform a pitch or arcuate roof. As shown in the drawing. the roof sheetsare supported at their eaves ends on Z-bar side plates 6, which arearranged with their webs horizontal and with their inner flangesextending upwardly, and are provided with depending eaves flangis 7 thatoverhang the upstanding inner flanges of said side plates and aresecured to the outer faces of such flanges by horizontal rivets 8. Theroof sheets are provided with upstanding side marginal seam flanges 9;and metal seam covers 10 of substantially inverted U-shaped GAR ROOF.

1927. Serial No. 200,825.

cross-section are placed astraddle adjacent seams flanges and arerigidly secured thereto by horizontal, rivets 11, thus constitutingoutside carlines for the roof. The seam covers 10 extend from caves tocaves of the car and are provided at the lower edges of their sidewallswith outstanding base flanges 12 that rest 011 the body'portions ofadjacent rooi sheets and are turned downat the eaves over the dependingeaves flanges 7 of said sheets. As shown in the drawing, the seam covers10 are of greater depth at the ridge than at the eaves, and their baseflanges 12 are wider at the eaves than at the ridge.

In order to prevent rusting of the sheets and damage to the lading dueto the sweating or collection of moisture on the under sides ofthe metalroof sheets, verticallyfex tending, downwardly opening" ventilating.flues' or. passageways 13 are provided at the eaves of the can, Saidventilating passageways areformed by hollow outstanding ribs 14 pressedin the depending eaves flanges ,7 of the sheets, preferably atpointssubstantially midway of the eaves ends thereof. By thisarrangement the middle portions of the depending eaves flanges arespaced away from the outer face of the upstandinginner flange or" theside plates ifar enough. to form the ventilating passageways 18, whichpermit fresh air to pass into the interior of the car between theundersides of the roof sheets and the upper edge of said side plate.

In order to prevent rain, snow, oinders, or sparks from entering the carthrough the ventilating passageways 13 formed by the outstandingvertical ribs 14: in the dependin eaves flanges 7 of the roof sheets,each ri 14 is provided with a metal cover or guard plate 15. Each of thecover plates 15 is provided with a hollow rib 16 adapted to straddle therib 14 in the depending eaves flange oi: a roof sheet, and side marginalflanges 17 which are secured to the said eaves flange on opposite sidesof rib thereon by horizontal rivets 8, which secure said flange to theupper flange of the side plate. Said cover plate is also provided with adepending outwardly ofiset skirt or apron portion 18, which projectsbelow the eaves flange The hereinbefore described arrangement securesfree circulation of fresh air through the interior of the car, therebypreventing sweating of the sheets which causes the sheets to rust and isliable to damage the lading; it. also serves to prevent rain, snow, andCinders from blowing into the interior of the car through theventilating passageways; and it also serves to protect and stiffen theoutstanding ribs which form said ventilating passageways.

What I claim is:

1. A car roof comprising roof sheets having depending eaves flangeswhich overhang the side plates of the ear and are provided with hollowoutstanding ribs which form ventilating passageways, and means on the deiiending eaves flanges oli said sheets for :=titl'ening and protectingsaid ribs and for weat'herprooting the lower ends thereof.

2. A car root comprising root sheets having depending eaves flanges whch overhang the side plates of the ear and are provided with hollowoutstanding ribs which form ventilating pasageways, means forstitl'ening and protecting said ribs, said means coinprising a platesecured to the depending eaves flanges of said sheets adjacent to eachriband having a portion adapted to straddle said rib.

A ear roof comprising-roof sheets having depending eaves flanges whichoverhang the side plates of the car and are provided with hollowoutstanding ribs which form ventilating passageways. means forstitfening and protecting the ribs in the depending eaves flanges ofsaid sheets and for weatherprooling the lower ends of said ribs. saidmeans comprising a plate secured to the depending eaves flanges of saidsheets adjacent to each rib therein and having a portion adapted tostraddle said rib and a portion extending below the lower end thereof.

t. A Car root comprising roof sheets having depending eaves flangeswhich overhang the side plates of the ear and are provided with hollowoutstanding. ribs which form ventilating passageways, means for still'ening and protecting the ribs in the depending eaves flanges of saidsheets. said means romprising a metal plate secured to the dependingeaves flanges ot the sheets adjacent to each rib and provided with ahollow rib adapted to snugly embrace the hollow rib in the dependingeaves flange.

5. A car roof comprising roof sheets having depending eaves flangeswhich overhang the side plates of the ea and are provided with hollowoutstanding ribs which form ventilating passagtwvays. means forstill'ening and protecting said ribs and for weatherprooling the lowerends thereof. said means compris ng a metal plate secured to the sideplate on opposite sides ol' the hollou rib in the depending eaves flangeol' the sheets and provided with a hollow rih adapted to snugly emln'acethe hollow rib in said depending eaves flange and a depending apronportion extending below the lower end of said flange.

(3. A cover plate for ventilating eaves construction of the kinddescribed, said cover plate conrprising a channel shaped body portionadapted to straddle the ventilating rib of a roof sheet, outstandingmarginal flanges atthe sides of the rib in said rover plate and :1depending apron portion disposed in a plane parallel to said marginaltiai'iges and extending below said last. mentioned rib.

Signed at New Kensington, Pa this th day of June; 1927.

CHARLES DAVID nossatn

